As we know current always pass via easiest way for it, so here current will pass via the resistance of 10 ohm resister because it has lower resistance than voltmeter.
And we can use the formula of
V = IR to measure voltage.
Making voltmeter with high resistance won’t cause any current loss and the sole purpose of voltmeter is to measure voltage not decrease current.
Voltmeter has high resistance to measure voltage difference between to measure points, it should not change the amount of current following in the circuit. The higher the resistance of voltmeter the more efficient it’ll be.